Finding the Fourth Proportional to 861,144.84, 1,291,805.28 and 329,113.62
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Solution
The fourth proportional to 861,144.84, 1,291,805.28 and 329,113.62 is: 493,704.07
Step by Step Solution
- Step 1: Write the proportion equation
861,144.84 : 1,291,805.28 = 329,113.62 : x - Step 2: Convert to fraction form
861,144.84/1,291,805.28 = 329,113.62/x - Step 3: Cross multiply
861,144.84x = 1,291,805.28 × 329,113.62 - Step 4: Simplify right side
861,144.84x = 425,150,712,035.91 - Step 5: Solve for x
x = 425,150,712,035.91/861,144.84 - Step 6: Final answer
x = 493,704.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.